Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 318 insertions, 0 deletions

diff --git a/drivers/isdn/hisax/jade.c b/drivers/isdn/hisax/jade.c
new file mode 100644
index 000000000000..f05d52757557
--- /dev/null
+++ b/drivers/isdn/hisax/jade.c
@@ -0,0 +1,318 @@
+/* $Id: jade.c,v 1.9.2.4 2004/01/14 16:04:48 keil Exp $
+ *
+ * JADE stuff (derived from original hscx.c)
+ *
+ * Author       Roland Klabunde
+ * Copyright    by Roland Klabunde   <R.Klabunde@Berkom.de>
+ * 
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+
+#include <linux/init.h>
+#include "hisax.h"
+#include "hscx.h"
+#include "jade.h"
+#include "isdnl1.h"
+#include <linux/interrupt.h>
+
+
+int __init
+JadeVersion(struct IsdnCardState *cs, char *s)
+{
+    int ver,i;
+    int to = 50;
+    cs->BC_Write_Reg(cs, -1, 0x50, 0x19);
+    i=0;
+    while (to) {
+        udelay(1);
+        ver = cs->BC_Read_Reg(cs, -1, 0x60);
+        to--;
+        if (ver)
+            break;
+        if (!to) {
+            printk(KERN_INFO "%s JADE version not obtainable\n", s);
+            return (0);
+        }
+    }
+    /* Wait for the JADE */
+    udelay(10);
+    /* Read version */
+    ver = cs->BC_Read_Reg(cs, -1, 0x60);
+    printk(KERN_INFO "%s JADE version: %d\n", s, ver);
+    return (1);
+}
+
+/* Write to indirect accessible jade register set */
+static void
+jade_write_indirect(struct IsdnCardState *cs, u_char reg, u_char value)
+{
+    int to = 50;
+    u_char ret;
+
+    /* Write the data */
+    cs->BC_Write_Reg(cs, -1, COMM_JADE+1, value);
+    /* Say JADE we wanna write indirect reg 'reg' */
+    cs->BC_Write_Reg(cs, -1, COMM_JADE, reg);
+    to = 50;
+    /* Wait for RDY goes high */
+    while (to) {
+        udelay(1);
+        ret = cs->BC_Read_Reg(cs, -1, COMM_JADE);
+        to--;
+        if (ret & 1)
+            /* Got acknowledge */
+            break;
+        if (!to) {
+            printk(KERN_INFO "Can not see ready bit from JADE DSP (reg=0x%X, value=0x%X)\n", reg, value);
+            return;
+        }
+    }
+}
+
+
+
+void
+modejade(struct BCState *bcs, int mode, int bc)
+{
+    struct IsdnCardState *cs = bcs->cs;
+    int jade = bcs->hw.hscx.hscx;
+
+    if (cs->debug & L1_DEB_HSCX) {
+        char tmp[40];
+        sprintf(tmp, "jade %c mode %d ichan %d",
+                'A' + jade, mode, bc);
+        debugl1(cs, tmp);
+    }
+    bcs->mode = mode;
+    bcs->channel = bc;
+        
+    cs->BC_Write_Reg(cs, jade, jade_HDLC_MODE, (mode == L1_MODE_TRANS ? jadeMODE_TMO:0x00));
+    cs->BC_Write_Reg(cs, jade, jade_HDLC_CCR0, (jadeCCR0_PU|jadeCCR0_ITF));
+    cs->BC_Write_Reg(cs, jade, jade_HDLC_CCR1, 0x00);
+
+    jade_write_indirect(cs, jade_HDLC1SERRXPATH, 0x08);
+    jade_write_indirect(cs, jade_HDLC2SERRXPATH, 0x08);
+    jade_write_indirect(cs, jade_HDLC1SERTXPATH, 0x00);
+    jade_write_indirect(cs, jade_HDLC2SERTXPATH, 0x00);
+
+    cs->BC_Write_Reg(cs, jade, jade_HDLC_XCCR, 0x07);
+    cs->BC_Write_Reg(cs, jade, jade_HDLC_RCCR, 0x07);
+
+    if (bc == 0) {
+        cs->BC_Write_Reg(cs, jade, jade_HDLC_TSAX, 0x00);
+        cs->BC_Write_Reg(cs, jade, jade_HDLC_TSAR, 0x00);
+    } else {
+        cs->BC_Write_Reg(cs, jade, jade_HDLC_TSAX, 0x04);
+        cs->BC_Write_Reg(cs, jade, jade_HDLC_TSAR, 0x04);
+    }
+    switch (mode) {
+        case (L1_MODE_NULL):
+                cs->BC_Write_Reg(cs, jade, jade_HDLC_MODE, jadeMODE_TMO);
+                break;
+        case (L1_MODE_TRANS):
+                cs->BC_Write_Reg(cs, jade, jade_HDLC_MODE, (jadeMODE_TMO|jadeMODE_RAC|jadeMODE_XAC));
+                break;
+        case (L1_MODE_HDLC):
+                cs->BC_Write_Reg(cs, jade, jade_HDLC_MODE, (jadeMODE_RAC|jadeMODE_XAC));
+                break;
+    }
+    if (mode) {
+        cs->BC_Write_Reg(cs, jade, jade_HDLC_RCMD, (jadeRCMD_RRES|jadeRCMD_RMC));
+        cs->BC_Write_Reg(cs, jade, jade_HDLC_XCMD, jadeXCMD_XRES);
+        /* Unmask ints */
+        cs->BC_Write_Reg(cs, jade, jade_HDLC_IMR, 0xF8);
+    }
+    else
+        /* Mask ints */
+        cs->BC_Write_Reg(cs, jade, jade_HDLC_IMR, 0x00);
+}
+
+static void
+jade_l2l1(struct PStack *st, int pr, void *arg)
+{
+    struct BCState *bcs = st->l1.bcs;
+    struct sk_buff *skb = arg;
+    u_long flags;
+
+    switch (pr) {
+        case (PH_DATA | REQUEST):
+                spin_lock_irqsave(&bcs->cs->lock, flags);
+                if (bcs->tx_skb) {
+                        skb_queue_tail(&bcs->squeue, skb);
+                } else {
+                        bcs->tx_skb = skb;
+                        test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
+                        bcs->hw.hscx.count = 0;
+                        bcs->cs->BC_Send_Data(bcs);
+                }
+                spin_unlock_irqrestore(&bcs->cs->lock, flags);
+                break;
+        case (PH_PULL | INDICATION):
+                spin_lock_irqsave(&bcs->cs->lock, flags);
+                if (bcs->tx_skb) {
+                        printk(KERN_WARNING "jade_l2l1: this shouldn't happen\n");
+                } else {
+                        test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
+                        bcs->tx_skb = skb;
+                        bcs->hw.hscx.count = 0;
+                        bcs->cs->BC_Send_Data(bcs);
+                }
+                spin_unlock_irqrestore(&bcs->cs->lock, flags);
+                break;
+        case (PH_PULL | REQUEST):
+                if (!bcs->tx_skb) {
+                    test_and_clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
+                    st->l1.l1l2(st, PH_PULL | CONFIRM, NULL);
+                } else
+                    test_and_set_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
+                break;
+        case (PH_ACTIVATE | REQUEST):
+                spin_lock_irqsave(&bcs->cs->lock, flags);
+                test_and_set_bit(BC_FLG_ACTIV, &bcs->Flag);
+                modejade(bcs, st->l1.mode, st->l1.bc);
+                spin_unlock_irqrestore(&bcs->cs->lock, flags);
+                l1_msg_b(st, pr, arg);
+                break;
+        case (PH_DEACTIVATE | REQUEST):
+                l1_msg_b(st, pr, arg);
+                break;
+        case (PH_DEACTIVATE | CONFIRM):
+                spin_lock_irqsave(&bcs->cs->lock, flags);
+                test_and_clear_bit(BC_FLG_ACTIV, &bcs->Flag);
+                test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
+                modejade(bcs, 0, st->l1.bc);
+                spin_unlock_irqrestore(&bcs->cs->lock, flags);
+                st->l1.l1l2(st, PH_DEACTIVATE | CONFIRM, NULL);
+                break;
+    }
+}
+
+void
+close_jadestate(struct BCState *bcs)
+{
+    modejade(bcs, 0, bcs->channel);
+    if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) {
+        if (bcs->hw.hscx.rcvbuf) {
+                kfree(bcs->hw.hscx.rcvbuf);
+                bcs->hw.hscx.rcvbuf = NULL;
+        }
+        if (bcs->blog) {
+                kfree(bcs->blog);
+                bcs->blog = NULL;
+        }
+        skb_queue_purge(&bcs->rqueue);
+        skb_queue_purge(&bcs->squeue);
+        if (bcs->tx_skb) {
+                dev_kfree_skb_any(bcs->tx_skb);
+                bcs->tx_skb = NULL;
+                test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
+        }
+    }
+}
+
+static int
+open_jadestate(struct IsdnCardState *cs, struct BCState *bcs)
+{
+        if (!test_and_set_bit(BC_FLG_INIT, &bcs->Flag)) {
+                if (!(bcs->hw.hscx.rcvbuf = kmalloc(HSCX_BUFMAX, GFP_ATOMIC))) {
+                        printk(KERN_WARNING
+                               "HiSax: No memory for hscx.rcvbuf\n");
+                        test_and_clear_bit(BC_FLG_INIT, &bcs->Flag);
+                        return (1);
+                }
+                if (!(bcs->blog = kmalloc(MAX_BLOG_SPACE, GFP_ATOMIC))) {
+                        printk(KERN_WARNING
+                                "HiSax: No memory for bcs->blog\n");
+                        test_and_clear_bit(BC_FLG_INIT, &bcs->Flag);
+                        kfree(bcs->hw.hscx.rcvbuf);
+                        bcs->hw.hscx.rcvbuf = NULL;
+                        return (2);
+                }
+                skb_queue_head_init(&bcs->rqueue);
+                skb_queue_head_init(&bcs->squeue);
+        }
+        bcs->tx_skb = NULL;
+        test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
+        bcs->event = 0;
+        bcs->hw.hscx.rcvidx = 0;
+        bcs->tx_cnt = 0;
+        return (0);
+}
+
+
+int
+setstack_jade(struct PStack *st, struct BCState *bcs)
+{
+        bcs->channel = st->l1.bc;
+        if (open_jadestate(st->l1.hardware, bcs))
+                return (-1);
+        st->l1.bcs = bcs;
+        st->l2.l2l1 = jade_l2l1;
+        setstack_manager(st);
+        bcs->st = st;
+        setstack_l1_B(st);
+        return (0);
+}
+
+void __init
+clear_pending_jade_ints(struct IsdnCardState *cs)
+{
+        int val;
+        char tmp[64];
+
+        cs->BC_Write_Reg(cs, 0, jade_HDLC_IMR, 0x00);
+        cs->BC_Write_Reg(cs, 1, jade_HDLC_IMR, 0x00);
+
+        val = cs->BC_Read_Reg(cs, 1, jade_HDLC_ISR);
+        sprintf(tmp, "jade B ISTA %x", val);
+        debugl1(cs, tmp);
+        val = cs->BC_Read_Reg(cs, 0, jade_HDLC_ISR);
+        sprintf(tmp, "jade A ISTA %x", val);
+        debugl1(cs, tmp);
+        val = cs->BC_Read_Reg(cs, 1, jade_HDLC_STAR);
+        sprintf(tmp, "jade B STAR %x", val);
+        debugl1(cs, tmp);
+        val = cs->BC_Read_Reg(cs, 0, jade_HDLC_STAR);
+        sprintf(tmp, "jade A STAR %x", val);
+        debugl1(cs, tmp);
+        /* Unmask ints */
+        cs->BC_Write_Reg(cs, 0, jade_HDLC_IMR, 0xF8);
+        cs->BC_Write_Reg(cs, 1, jade_HDLC_IMR, 0xF8);
+}
+
+void __init
+initjade(struct IsdnCardState *cs)
+{
+        cs->bcs[0].BC_SetStack = setstack_jade;
+        cs->bcs[1].BC_SetStack = setstack_jade;
+        cs->bcs[0].BC_Close = close_jadestate;
+        cs->bcs[1].BC_Close = close_jadestate;
+        cs->bcs[0].hw.hscx.hscx = 0;
+        cs->bcs[1].hw.hscx.hscx = 1;
+
+        /* Stop DSP audio tx/rx */
+        jade_write_indirect(cs, 0x11, 0x0f);
+        jade_write_indirect(cs, 0x17, 0x2f);
+
+        /* Transparent Mode, RxTx inactive, No Test, No RFS/TFS */
+        cs->BC_Write_Reg(cs, 0, jade_HDLC_MODE, jadeMODE_TMO);
+        cs->BC_Write_Reg(cs, 1, jade_HDLC_MODE, jadeMODE_TMO);
+        /* Power down, 1-Idle, RxTx least significant bit first */
+        cs->BC_Write_Reg(cs, 0, jade_HDLC_CCR0, 0x00);
+        cs->BC_Write_Reg(cs, 1, jade_HDLC_CCR0, 0x00);
+        /* Mask all interrupts */
+        cs->BC_Write_Reg(cs, 0, jade_HDLC_IMR,  0x00);
+        cs->BC_Write_Reg(cs, 1, jade_HDLC_IMR,  0x00);
+        /* Setup host access to hdlc controller */
+        jade_write_indirect(cs, jade_HDLCCNTRACCESS, (jadeINDIRECT_HAH1|jadeINDIRECT_HAH2));
+        /* Unmask HDLC int (donīt forget DSP int later on)*/
+        cs->BC_Write_Reg(cs, -1,jade_INT, (jadeINT_HDLC1|jadeINT_HDLC2));
+
+        /* once again TRANSPARENT */    
+        modejade(cs->bcs, 0, 0);
+        modejade(cs->bcs + 1, 0, 0);
+}
+